“Euphoria meets Things Have Gotten Worse Since We Last Spoke in this latest novel by the Bram Stoker Award–winning author Hailey Piper, following a couple whose search to spice up their sex life leads them down a path of madness.

A kink-fixated couple, Carmen and Blanca, have been in a rut. That is until Blanca discovers the enigmatic Smoke in an under-street drug den, who holds pages to a strange play, The King in Yellow. Read too much, and you’ll fall into madness. But read just a little an...